Furnace for the production of garbage or other refuse matter.



No. 776.605. PATENTEE EEG. 6, 1904.

VVI. LINDSAY G E. I. CUNNINGHAM. Y -EURNAGE EUR TEE REDUGTIUN UE GARBAGE 0R OTHER REFUSE MATTER. PPLIOTIQN FILED JULY 19. 1904.

b? SHEETS--BEEET 1.

No. 776,605. PATBNTED DEG. 6, 1904.

J. LINDSAY 66 R. J. CUNNINGHAM. PURNACBRPOR THB-REDUCTION 0F GARBAGE 0N OTHER REFUSE MATTER.'

' APPLICATION FILED JULY1 9, 1904. N0 MODEL. 2 SHEETS-SHEET 2.

No. 776,605. Patented December 6, 1904.

IINTTE STATES PATENT Orricn.

JOHN LINDSAY, OF GRAFTON, AND ROBERT J'. CUNNINGHAM, OF PITTS- BURG, PENNSYLVANIA, ASSIGNORS OF ONEIHIRD TO JOI-IN W'. VEACI-I, OF PITTSBURG, PENNSYLVANIA.

SPECIFICATION forming part of Letters Patent No. 776,605, dated December 6, 1904.

Application filed July 19, 1904. Serial No. 217,161. (No model T @ZZ 1/07'1/07'11/ 77W?! (/ULGHWLI 7', beyond which is a downwardly-descending Be itknown that we,.IoHNLINDsAY,acitizen iiue8, which communicates with the ash-pit of the United States, residing' at Grafton, and and lire-tine beneath the grate-bars 17 of the 50 ROBERT J. CUNNINGHAM, a subject of the King chamber 2. This lastmentioned ash -pit is of Great Britain, residing at Pittsburg, in the provided with a series of transverse staggered county of Allegheny and State of Pennsylvapartition-walls 10, extending from each side nia, have invented certain new and useful Imwall 1, leaving' spaces lO', through which the provements in Furnaces for the Reduction of products of Vcombustion may pass on their way 55 Garbage or other Refuse Matter; and we do to a fine 11, arranged beneath the ash-pit 6,

1o declare the following' to be a full, clear, and. the said flue communicating' with the draftexact description of the invention, such as will stack 1Q, arranged at the [ire end of the furenable others skilled in the art to which it apnace. These cross-walls are staggered in pertains to make and use the same, reference such manner as to bring' the spaces 10' out of 60 being had to the accompanyingdrawings, and line with each other to form a tortuous pas- I5 to the figures of reference marked thereon, sage and to retard and retain the waste heat which form a part of this specih'cation. from the hre-chambers above as long as pos- This invention relates to an improved fursible before permitting' the same to enter the nace for the reduction of garbage and other flue 11, thereby utilizing' the heat for the pur- 65 refuse matter; and it consists in the certain pose of drying and aiding in the combustion 2O details of construction and combination of of the garbage placed upon the grate-bars 17 parts, as will be fully described hereinafter. of the chamber 2. The grate-bars 17 above In the accompanying drawings, Figure 1 is mentioned are supported on bars 18, the ends a central side sectional elevation of our imof which rest on the bridge-walls and7 and 70 proved furnace for the reduction of garbage are supported at intervals by the cross-walls and other refuse mattei', the same being con- 10. Formed in thearch 1'over the refuse firestructed and arranged in accordance with our chamber2 are openings or hoppers 23,t`hrough invention. Fig. 2 is a sectional plan view, which the garbage is thrown into the said the said section being taken on the lineaI @of chamber, and each hopper fitted with a re- 75 Fig. 1. Fig. 3 is an end sectional elevation movable lid or cover 24, having a means 25 3o of the furnace, taken on the line y 1/ of Fig. 2. for connection with a suitable lifting device Fig'. 4L is a similar view taken on the lineR It t0 remove and replace said covers. of said'Fig. 2. Fig. 5 is a sectional end ele- Arranged between the hoppers 23 and bevation on the line .e e. neath the main arch or roof 1 of the furnace 8O To construct a furnace in accordance with are a series of deiiecting-arches 27, which tend our invention, and thereby provide a means to deliect the flames from the lire-chamber 3 for burning garbage and other refuse matter, between the piles qt' refuse immediately bewe form from brick a 1'ectangular-sliaped furneath the hopper-openings 23, thereby bringnace consisting of the end and side walls 1, ing' the flames in close contact with the uneven 8 5 covered by a suitable arch 1', having' a firesurface of said refuse. This chamber is pro- 40 chamber 3 at one end thereof, the said chamvided with a number of small openings 15, iitber being iitted with grateebars A, arranged ted with air-tight doors, by means of which above an ash-pit 6 and separated from the the refuse may be stirred or poked should chamber 2 for the reduction of the garbage the same become packed or lie in asolid mass. 9o by a bridge-wall 5. This reduction-chamber Cleaning-doors 22, covering openings 16,

2 is located at one side of ythe lire-chamber 3 are arranged at intervals in the front side wall and extends almost the entire length of the l, which are used to remove the ash descendfurnace, terminating' at a cross or bridge wall ing from the chamber 2 above. Also a cleaning-door 14 is arranged in the draft-stack 12 and another, 19, fitted with adoor 22, for cleaning the iiue 8 at the end of the furnace.

Placed at a suitable position in the draftstack 12 is open briclwork formed of brick or tile 13, which when heated by the waste products of combustion will consume any obnoxious gases escaping from the chamber 2.

Various slight modifications and changes may be made in the details of construction Without departing from the spirit of the invention. Therefore we do not wish to confine ourselves to that shown and described, but wish to claim all such as may come within the scope of the invention.

Having thus described our invention, what we claim, and desire to obtain by Letters Patent, is-

1. A furnace for burning refuse comprising a refuse-burning chamber having' a gratesurface and hopper-openings, a fire-chamber at one end thereof and a downwardly-descending flue at the other, a chamber beneath said grate-surface in communication with said flue, a series of staggered partition-walls arranged in said chamber leaving spaces at the ends thereof, said spaces being out of line the one with the other and a flue leading to the draftstack, as described.

2. A furnace for burning garbage comprising a refuse-burning chamber having a gratesurface and hopper-openings, intermediate deiecting-arches arranged between said openings, a fire-chamber at one end and a downwardly-descending flue at the other end of said refuse chamber, a chamber beneath said grate-surface communicating with said flue, a series of staggered partition-Walls arranged across said lower chamber leaving spaces at the ends thereof, said spaces being out of line the one with the other to form a tortuous passage, and a flue leading from said passage to the draft-stack, as described.

3. A furnace for burning refuse comprising a fire-chamber 3, an adjacent refuse-burning chamber 2 separated by a bridge-wall 5, a grate-surface 17 in said refuse-chamber, hopper-openings 23 and intermediate deflectingarches 27, a bridge-wall 7 at the end of the refuse-chamber opposite the fire-chamber 3, a downwardly-descending flue 8 With openings 9, a chamber beneath the grate-surface 17, a series of transverse partition-walls 10 having spaces 10', said spaces being' arranged out of line the one with the other, a flue 11 passing beneath the fire-chamber 3, and leading from the chamber beneath the grate-surface to the draft-stack, substantially as described.

In testimony whereof we aiiX our signatures in presence of two witnesses.

JOHN LlNDSAY. ROBERT J. CUNNINGHAM.

Witnesses:

WVM. Gr. VALTER, J. A. HERRON. 

